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A smoother operator | 2017 Acura MDX Sport Hybrid First Drive

There's a lot to unpack when trying to understand the 2017 Acura MDX Sport Hybrid. Acura is billing it as a three-row crossover infused with NSX technology via a sport-oriented hybrid drivetrain. So it's a hybrid crossover, sure. But it doesn't comport itself like a traditional crossover, nor is it a conventional hybrid. What it is, underneath, is an intentionally subtle blend of impressive technologies doing their best to appear transparent – and it's too subtle, I fear, to be appreciated by those who'd like it the most. This is a lot of foreshadowing, but if you're not familiar with the MDX Sport Hybrid's powertrain, let's fill you in. The MDX Sport Hybrid uses the same basic system as the 2014 RLX Sport Hybrid, with some newer NSX battery tech sprinkled in, packaged neatly into the refreshed third-generation MDX platform. The system improves handling and efficiency – but more important, it smoothes out the harshness of shifts and engine stop-starts. We do need to examine the system in some detail to understand how all this affects the MDX as a whole, so let's go toe to tail. Up front is a transversely-mounted 3.0-liter V6 making 257 horsepower and 218 pound-feet of torque, as well as featuring i-VTEC and cylinder deactivation. It's slightly smaller than the 3.5-liter V6 found in the conventional MDX and many other Honda and Acura products. Attached alongside is a Honda-produced 7-speed dual-clutch transmission that has a 47 hp, 109 lb-ft electric motor-generator stuffed inside. Amidships are the battery pack and the electronics to control it, and stretching aft from there are large cables feeding power to a pair of electric motors that reside in single housing, one for each wheel. Together, they produce electron witchcraft and torque-delivery wizardry – and add 72 hp and 108 lb-ft of torque to the mix. The total system output is 321 hp and 289 lb-ft of torque – a gain of 31 hp and 22 lb-ft over the conventional MDX SH-AWD. Beyond the raw numbers, there's the remarkable subjective benefit of the Sport Hybrid's drivetrain. Engine start-stop events are quiet and smooth, nearly imperceptible when under way – in stark contrast to the too-perceptible shudder of competing engines kicking on. The electric motors (mainly the one residing in the transmission) add in power to make up for the lull during a shift, making shifts up or down seamless, as well as providing regenerative capacity.

NHTSA, IIHS, and 20 automakers to make auto braking standard by 2022

The National Highway Traffic Safety Administration, the Insurance Institute for Highway Safety and virtually every automaker in the US domestic market have announced a pact to make automatic emergency braking standard by 2022. Here's the full rundown of companies involved: BMW, Fiat Chrysler Automobiles, Ford, General Motors, Honda, Hyundai, Jaguar Land Rover, Kia, Mazda, Mercedes-Benz, Mitsubishi, Nissan, Subaru, Tesla, Toyota, Volkswagen, and Volvo (not to mention the brands that fall under each automaker's respective umbrella). Like we reported yesterday, AEB will be as ubiquitous in the future as traction and stability control are today. But the thing to note here is that this is not a governmental mandate. It's truly an agreement between automakers and the government, a fact that NHTSA claims will lead to widespread adoption three years sooner than a formal rule. That fact in itself should prevent up to 28,000 crashes and 12,000 injuries. The agreement will come into effect in two waves. For the majority of vehicles on the road – those with gross vehicle weights below 8,500 pounds – AEB will need to be standard equipment by September 1, 2022. Vehicles between 8,501 and 10,000 pounds will have an extra three years to offer AEB. "It's an exciting time for vehicle safety. By proactively making emergency braking systems standard equipment on their vehicles, these 20 automakers will help prevent thousands of crashes and save lives," said Secretary of Transportation Anthony Foxx said in an official statement. "It's a win for safety and a win for consumers." Read on for the official press release from NHTSA. Related Video: U.S. DOT and IIHS announce historic commitment of 20 automakers to make automatic emergency braking standard on new vehicles McLEAN, Va. – The U.S. Department of Transportation's National Highway Traffic Safety Administration and the Insurance Institute for Highway Safety announced today a historic commitment by 20 automakers representing more than 99 percent of the U.S. auto market to make automatic emergency braking a standard feature on virtually all new cars no later than NHTSA's 2022 reporting year, which begins Sept 1, 2022. Automakers making the commitment are Audi, BMW, FCA US LLC, Ford, General Motors, Honda, Hyundai, Jaguar Land Rover, Kia, Maserati, Mazda, Mercedes-Benz, Mitsubishi Motors, Nissan, Porsche, Subaru, Tesla Motors Inc., Toyota, Volkswagen and Volvo Car USA.

2021 Acura TLX vs. luxury sedans: How they compare on paper

The 2021 Acura TLX has been revealed, and it looks superb. We also have a handful of hard numbers, so you know that we've got to take a look at how they compare to the competition. As we only have numbers for the base turbocharged four-cylinder model, we're only looking at similarly equipped competitors. And with the small to midsize luxury sedan segment burgeoning these days, we've selected a mix of rear-drive, front-drive and all-wheel-drive options to compare to this front-drive-based sedan. You can see the raw numbers below, and a summary of them under that. Engine and transmission The Acura's base engine is a turbocharged 2.0-liter four-cylinder, just like the vast majority of cars in its segment. It's an especially powerful base engine, though, with 272 horses. That tops every base engine in this group, and is only topped by Volvo's mid-range turbocharged and supercharged four-cylinder that makes 316 horsepower. Its torque rating is strong, too, falling short of the aforementioned Volvo engine and the BMW four-cylinder. You'll note that we've included two four-cylinder engines for the Audi and the Volvo. With the Audi, the entry-level engine is seriously underpowered versus the competition, whereas the higher-output version is more comparable, so we felt it should be included. As for the Volvo, since the turbo and supercharged engine isn't quite comparable to each of these model's six-cylinder alternatives, we felt it should be mentioned, here. Many of these cars have substantially more powerful alternatives available, including the Acura. The Acura will have a twin-turbo 3.0-liter V6, but we have no specifications for it. It will face off with the 382-horsepower BMW M340i, 400-horsepower Volvo S60 T8 hybrid, 365-horsepower Genesis G70 3.3T and 349-horsepower Audi S4, among others. The Acura is available with either front-wheel drive or all-wheel drive, and every version gets a 10-speed automatic, giving it claim to the most gears. All the other cars here make do with an eight-speed automatic. The Genesis G70 is the sole offering with a manual transmission, something that's offered on the Sport trim with upgraded brakes and a limited-slip differential. The Audi is unique in making all-wheel drive standard. On the Volvo, all-wheel-drive is only available if you upgrade to the higher-output engine, another reason why we wanted to include it. Size On the outside, the Acura is the largest, or more specifically, the longest.